Sigtronics SPA-400 4 Place Panel Intercom - Sigtronics pioneered the voice activated intercom market in 1974 and continues to deliver value and performance today in the FAA TSO approved SPA-400 intercom series. Radio priority avoids stepping on incoming and outgoing radio messages. Choose either rectangular (horizontal or vertical) or circular faceplate mounting configuration to fit anywhere in the cockpit.

- FAA TSO approved
- Pilot fail safe feature allows pilot to always hear radios
- Reversible face plate included for vertical or horizontal mounting
- Size - Panel 2.5" x 1", Chassis 4" x 2.5" x 1"
- Weight - 4.5 oz chassis, 5.5 oz jacks & wiring harness
- Installation hardware included, including jack kit & pre-wired harness

Part Number - spa-400

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